From the Mouth of Miles

Miles feeling my leg's 5 o'clock shadow:

Miles: What's this?

Me: Prickles. Can you say prickles?

Miles: Pickles. Sharp!

Miles is obsessed with the mailman:

Miles: Maymail!

Me: Mail Man.

Miles: Maymail!

Me: Say mail...

Miles: Mail.

Me: Say man...

Miles: Man.

Me: Now say Mail Man.

Miles: Maymail!!

Close enough. 

Don't worry, he's just puddle jumping in the street.

While looking at Nemo on his swim diapers:
Miles: What's this?
Me: Nemo from Finding Nemo. Remember that movie with the fish?
Miles: Elmo Nemo!

Miles always calls his drink coffee no matter what liquid is in it.
Me: Are you thirsty? Here's your water cup.
Miles: Oh! My coffee!!
...
Me: Here's you milk to go with dinner.
Miles: Oh! My coffee!!
I must drink too much coffee?

Grant is touching something he shouldn't be touching:

Miles: Gant! Ton't touch! Ton't touch Gant!

Thanks big brother for keeping an eye on Grant, then proceeding to join him in the forbidden activity.